How to find models in scene without changing origin point?
frame all:home key
view selected:  In the outliner, select the model, and press the period key on your Numpad.
To move the entire model to the world origin:  In the outliner, select the model, press shift+s on your keyboard, and there should be a pie menu that says &quot;selection to cursor&quot;.
Your settings may be different, but the actions should be the same.